| US 7,515,627 B2 | ||
| System and method for ultra-wideband (UWB) communication transceiver | ||
| Wen-Chung Liu, Hsinchu (Taiwan); and Gin-Kou Ma, Hsinchu (Taiwan) | ||
| Assigned to Industrial Technology Research Institute, Hsinchu (Taiwan) | ||
| Filed on Aug. 29, 2005, as Appl. No. 11/212,700. | ||
| Claims priority of provisional application 60/645071, filed on Jan. 21, 2005. | ||
| Prior Publication US 2006/0165155 A1, Jul. 27, 2006 | ||
| Int. Cl. H04B 1/00 (2006.01) | ||
| U.S. Cl. 375—133 [375/135; 375/136; 375/141; 375/146; 375/147] | 16 Claims |
| 1. An ultra-wideband (UWB) transmitter to transmit an information bit stream, comprising:
one or more modulation sections to provide one or more modulation functions to modulate the information bit stream;
a waveform generator including a plurality of voltage-controlled oscillators (VCOs) respectively corresponding to a plurality
of base frequency bands;
a space-time-frequency mapping table that includes information corresponding to relationships among the modulation functions,
the plurality of base frequency bands, and time; and
means, responsive to the information stored in the table, to determine a modulation function from one or more modulation functions
and a sequence for the plurality of base frequency bands, to control the waveform generator to generate a carrier wave using
one of the plurality of base frequency bands based on the sequence, and to control the modulation sections to modulate the
information bit stream based on the modulation function and the carrier wave and to generate one or more modulated signal
streams.
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